SCALARS AND VECTOR QUANTITIES
Lots of people have been asking questions like what is a scalar quantity? What is a vector quantity? Well ask no more cos the solution is here. In this article we are going to cover everything you need to know about scalars and vector quantities.
Scalar quantities: This are those quantities without direction but has magnitude. This implies that it has magnitude or numerical value but no direction.Examples of scalar quantities are Distance,Temperature,Energy, Length, mass and others.
Vector quantities: This are those quantities with both magnitude and direction. Examples of vector quantities are Displacement,velocity,acceleration,Weight, Momentum and others.To differentiate between Vector and scalar quantities let’s use distance and displacement. Distance is a path traveled with time while displacement is the distance traveled in a specified direction. scalars are added using ordinary arithmetic whereas vectors are added using geometrical method. Now let’s go to vector representation.
Vector representation: As we all know that vector quantities have both magnitude and direction, So we represent vector quantities with an arrow head indicating the path of the travel. Lets say Mr obi travels 60km North. You draw your four cardinal point showing that Mr obi traveled to the north by 60km. If you ave questions don’t forget to drop it on the comment section.
Addition of vectors: Let’s assume that two vectors travel to north and south respectively and there values are 30km and 70km respectively.If they are scalar quantities,You can add them and the value will come up to 100km. But since it is a vector,You can’t just add them like that. You can only add them Parallelogram method. Lastly we are going to cover Resolution of vectors components.
Resolution of vectors components: Vectors are simply resolved to the vertical and horizontal axis respectively
he horizontal is cos tita while the vertical is Sin tita.
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